/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/ToolSceneQueriesUtil.h
Run a query against the scene to find the nearest WorldGrid snap point
namespace ToolSceneQueriesUtil { bool ToolSceneQueriesUtil::FindWorldGridSnapPoint ( const [UInteractiveTool](API\Runtime\InteractiveToolsFramework\UInteractiveTool) * Tool, const FVector3d & QueryPoint, FVector3d & GridSnapPointOut ) }